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Old diesel engines in new truck bodies (gliders) can meet old emissions rules. They emit up to 55 times as much pollution as regular truck tractors, and 10 times the pollution potential of the 455,000 recalled Dieselgate VWs.

Neptune’s tumultuous atmosphere gives rise to vortices similar to Jupiter’s Great Red Spot, but storms on Neptune usually just last a few years. For the first time, astronomers are watching one of them evaporate before their telescopic eyes.

With a slim form factor and a focus on flexibility, these highly portable laptops are excellent fits for most consumers. Now, Dell is offering up the sleek XPS 13 with a brand new eighth generation Core i7 CPU at a very reasonable asking price.

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